About: http://webisa.webdatacommons.org/243339263

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In some embodiments, the weight 200 and/or screw 210 may be made of stainless steel, titanium, tungsten, or other metal materials.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com